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New Zealand is in stage 4 of the DTM. This is because they have a low CBR of 13.3 and a low CDR of 7.4. This stabilizes the total population growth. The RNI, TFR, IMR, MMR, and population growth rate are all average and help keep the population stable. Stage 4 of the DTM is viewed as an ideal placement for a country because the total population growth is gradual, which won't lead to overpopulation or under population. Since the population is growing steadily, the doubling time is very high for New Zealand. The doubling time is 119 years. The dependency ratio is 54%, which means over half the population cannot work. This also means that the other 46% that can work have to support the others, which is unevenly balanced. Essentially, this could weaken the government because the social security money comes from the paychecks of the people working. If you have less workers than the people who need social security, then there won't be enough money to provide to the people who need it.